Individual Healthcare Provider
Christopher Lewis Keola Williams, PA-C
Provider's NPPES record last updated: September 9, 2026
Overview
- Entity Type
- Individual Healthcare Provider
- NPI
- 1093428963
- Primary Specialty
- Physician Assistant
- Practice Location
- Nevada City, California
- Sole Proprietor
- Yes
Federal Screening
NPISignal checked this NPI against federal exclusion sources. Results below are based on the NPI number itself — an identifier match, not a name match.
List of Excluded Individuals/Entities (LEIE)
HHS Office of Inspector General
No potential match was identified in NPISignal's indexed List of Excluded Individuals/Entities (LEIE) records as of 2026-09-10.
- Source data
- September 10, 2026
- Records indexed
- 84,001
- Screened
- Sep 19, 2026, 7:40 AM UTC
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
SAM.gov Exclusions
U.S. General Services Administration
SAM.gov Exclusions was not checked.
SAM.gov screening is not configured on this deployment. No SAM check has been performed.
- Screened
- Not checked
This is an NPI-based check only. NPISignal does not publish name-based exclusion matches on a provider profile. A shared or similar name is a lead that requires human review, not an identification, and this page is not the place to make one. Run a name-based screening below to see potential matches with the reasons for each.
This reflects only the records NPISignal currently holds and the identity information supplied. It is not a verification of eligibility, licensure, or compliance. Verify decisions that matter against the authoritative source.
Searches OIG LEIE and SAM.gov by name and reviews every potential match.
Specialties & Taxonomies
- Primary
Physician Assistant
Physician Assistants & Advanced Practice Nursing Providers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
Taxonomy code 363A00000X
Provider-Reported License Information
- Physician Assistant (California)
- PA64068
Practice Locations
Practice Location
11128 Yuba Crest Dr
Nevada City, California 95959-9781
Phone: (720) 427-2179
Additional Practice Location
21877 Oak Hill Ln
Clovis, California 93619-9346
Phone: (844) 244-7837
Fax: (559) 793-7258
Additional Practice Location
725 Front St Ste 206
Santa Cruz, California 95060-4538
Phone: (831) 425-1385
Additional Practice Location
2500 Vineyard Rd
Novato, California 94947-3633
Phone: (415) 895-5360
Fax: (415) 895-5360
Additional Practice Location
6271 Mr Magpie
Shingle Springs, California 95682-8052
Phone: (844) 244-7837
Fax: (559) 793-7258
Additional Practice Location
2501 Artesia Blvd Ste 203
Redondo Beach, California 90278-3273
Phone: (310) 526-2282
Fax: (310) 526-2282
Additional Practice Location
1431 Crescent Ct
Yuba City, California 95991-6713
Phone: (530) 531-0000
Fax: (530) 531-0000
Record Information
- Enumeration Date
- January 5, 2023
- Provider's NPPES Record Last Updated
- September 9, 2026
- Certification Date
- September 9, 2026
- NPISignal NPPES Dataset
- August 2026
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